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Litewski S, Mróz M, Bartoszek A, Kusznierewicz B. Post-Chromatographic Derivatization Coupled with Mass Spectrometry as a Method of Profiling and Identification of Antioxidants; Ligustrum vulgare Phytocomplex as an Example. Molecules 2023; 28:8000. [PMID: 38138490 PMCID: PMC10745792 DOI: 10.3390/molecules28248000] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 11/17/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
High-performance liquid chromatography (HPLC) and high-performance thin-layer chromatography (HPTLC) coupled with radical scavenging assays, such as 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) can be both used for the detection of the antioxidants in plant extracts. In this study, the ethanolic (70% v/v) extracts from different morphological parts of Ligustrum vulgare collected at different stages of maturity were used as the source of antioxidants. The final identification of antioxidants was performed using high-resolution mass spectroscopy (HRMS). As a result, 19 compounds with antioxidant properties detected with HPLC-ABTS assay and 10 compounds detected with HPTLC-DPPH/ABTS assay were identified, mostly from the group of iridoids, phenylethanoids, and flavonoids. When comparing different L. vulgare samples, it was found that the extracts obtained from leaves contained the greatest number of antioxidants. The results of this study suggest that HPTLC-DPPH/ABTS as well as HPLC-ABTS derivatization coupled with the HRMS can be successfully used for profiling and identification of antioxidants from natural sources. Planar chromatography is more suitable for screening multiple samples because of its simplicity, whereas more challenging liquid chromatography provides more detailed information and is therefore better for a selected set of samples.
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Affiliation(s)
| | | | - Agnieszka Bartoszek
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland; (S.L.); (M.M.)
| | - Barbara Kusznierewicz
- Department of Chemistry, Technology and Biotechnology of Food, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza St., 80-233 Gdańsk, Poland; (S.L.); (M.M.)
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Siebert DA, Caon NB, Alberton MD, Vitali L, Parize AL, Micke GA. Immobilized acetylcholinesterase in magnetic nanoparticles for in-line inhibition studies using a capillary electrophoresis system. Anal Chim Acta 2023; 1275:341566. [PMID: 37524460 DOI: 10.1016/j.aca.2023.341566] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 08/02/2023]
Abstract
Enzyme assays can be performed with the capillary electrophoresis technique (CE) in many approaches, such as the immobilized enzyme micro-reactor. Acetylcholinesterase is a promising enzyme to be used when pursuing such a method, as it has already been explored in the proposal of similar methods of miniaturizing enzyme assays. The present work proposes a novel enzyme micro-reactor, based on the anchorage of the enzyme on magnetic nanoparticles of MnFe2O4, with chitosan and glutaraldehyde as the cross-linker in the capillary by means of an arrange of neodymium magnets. The calculated Km of the enzyme evaluated by this method was 1.12 mmol L-1, comparable to other studies in the literature that utilizes immobilized enzymes. Also, IC50 for neostigmine was assessed in 3 different micro-reactors, with an average of 29.42 ± 3.88 μmol L-1. In terms of the micro-reactor stability, it was possible to perform at least 25 experiments with assembled micro-reactor. The method was applied to hydroalcoholic extracts of 7 plant species. Plinia cauliflora had the best result, with 42.31 ± 6.81% of enzyme inhibition in a concentration of 100 mg L-1.
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Affiliation(s)
- Diogo Alexandre Siebert
- Laboratório de Eletroforese Capilar, Departamento de Química, Universidade Federal de Santa Catarina, Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Natália Bruzamarello Caon
- Laboratório de Estudo em Materiais Poliméricos, Departamento de Química, Universidade Federal de Santa Catarina, Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Michele Debiasi Alberton
- Laboratório de Pesquisa em Produtos Naturais, Universidade Regional de Blumenau, Rua São Paulo 2171, CEP 89030-000, Blumenau, SC, Brazil
| | - Luciano Vitali
- Laboratório de Eletroforese Capilar, Departamento de Química, Universidade Federal de Santa Catarina, Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Alexandre Luis Parize
- Laboratório de Estudo em Materiais Poliméricos, Departamento de Química, Universidade Federal de Santa Catarina, Trindade, CEP 88040-900, Florianópolis, SC, Brazil
| | - Gustavo Amadeu Micke
- Laboratório de Eletroforese Capilar, Departamento de Química, Universidade Federal de Santa Catarina, Trindade, CEP 88040-900, Florianópolis, SC, Brazil.
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Qian ZM, Cheng XJ, Wang Q, Huang Q, Jin LL, Ma YF, Xie JS, Li DQ. On-line pre-column FRAP-based antioxidant reaction coupled with HPLC-DAD-TOF/MS for rapid screening of natural antioxidants from different parts of Polygonum viviparum†. RSC Adv 2023; 13:9585-9594. [PMID: 36968051 PMCID: PMC10035567 DOI: 10.1039/d2ra08247k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 03/20/2023] [Indexed: 03/25/2023] Open
Abstract
Polygonum viviparum L. (PV) is a widely used resource plant with high medicinal, feeding and ecological values. Our studies show that PV has strong antioxidant activity. However, up to date, the antioxidant activity and components in other parts were not fully elucidated. In the present study, a new online pre-column ferric ion reducing antioxidant power (FRAP)-based antioxidant reaction coupled with high performance liquid chromatography-diode array detector-quadrupole-time-of-flight mass spectrometry (HPLC-DAD-TOF/MS) was developed for rapid and high-throughput screening of natural antioxidants from three different parts of PV including stems and leaves, fruits and rhizomes. In this procedure, it was assumed that the peak areas of compounds with potential antioxidant activity in HPLC chromatograms would be greatly diminished or vanish after incubating with the FRAP. The online incubation conditions including mixed ratios of sample and FRAP solution and reaction times were firstly optimized with six standards. Then, the repeatability of the screening system was evaluated by analysis of the samples of stems and leaves of PV. As a result, a total of 21 compounds mainly including flavonoids and phenolic acids were screened from the three parts of PV. In conclusion, the present study provided a simple and effective strategy to rapidly screen antioxidants in natural products. Polygonum viviparum L. (PV) is a widely used resource plant with high medicinal, feeding and ecological values.![]()
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Affiliation(s)
- Zheng-ming Qian
- College of Medical Imaging Laboratory and Rehabilitation, Xiangnan UniversityChenzhou 423000Hunan ProvinceChina
- Dongguan HEC Cordyceps R&D Co., Ltd.No. 368, Zhen'an Middle Road, Chang'an TownDongguan 523850Guangdong ProvinceChina
| | - Xin-jie Cheng
- Department of Pharmacy, The Second Hospital of Hebei Medical UniversityNo. 215, Heping West RoadShijiazhuang 050000Hebei ProvinceChina
- National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital, Chinese Academy of Medical SciencesLangfangChina
| | - Qiao Wang
- Dongguan HEC Cordyceps R&D Co., Ltd.No. 368, Zhen'an Middle Road, Chang'an TownDongguan 523850Guangdong ProvinceChina
| | - Qi Huang
- Dongguan HEC Cordyceps R&D Co., Ltd.No. 368, Zhen'an Middle Road, Chang'an TownDongguan 523850Guangdong ProvinceChina
| | - Li-ling Jin
- Dongguan HEC Cordyceps R&D Co., Ltd.No. 368, Zhen'an Middle Road, Chang'an TownDongguan 523850Guangdong ProvinceChina
| | - Ya-fei Ma
- Department of Pharmacy, The Second Hospital of Hebei Medical UniversityNo. 215, Heping West RoadShijiazhuang 050000Hebei ProvinceChina
| | - Jia-sheng Xie
- Guangdong Mige Sunshine Technology Co. Ltd.Guangzhou 510700Guangdong ProvinceChina
| | - De-qiang Li
- Department of Pharmacy, The Second Hospital of Hebei Medical UniversityNo. 215, Heping West RoadShijiazhuang 050000Hebei ProvinceChina
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Jia X, Sun S, Zhang Q, Wang N, Yang M, Jin Y, Du Y. Screening and Capability Assessment of Tyrosinase Inhibitors in Isodon excisoides by Ultrafiltration Coupled with UHPLC-Q-TOF-MS and Molecular Docking Technology. Chem Biodivers 2022; 19:e202200748. [PMID: 36369642 DOI: 10.1002/cbdv.202200748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/11/2022] [Indexed: 11/13/2022]
Abstract
Tyrosinase inhibitors can alleviate the harm to the liver caused by tyrosinase. How to effectively screen out natural tyrosinase inhibitors becomes a focus. In this study, Isodon excisoides was first extracted with the ultrasound optimized by response surface methodology. Then, a method combined ultrafiltration with ultra-liquid chromatography mass spectrometry (UHPLC/MS) was built to screen and identify tyrosinase inhibitors. The binding energies of active ingredients to tyrosinase were calculated by molecular docking. The reliability of the results was validated by the IC50 of enzyme inhibition assay. As a result, the binding energies of 7 components including excisanin B, lasiokaurin, rabdophyllin G, rabdoserrin B, rabdosin D, rabdosinate and weisiensin were lower than that of resveratrol. It was indicated that these components had high tyrosinase inhibitory activity. The IC50 values of lasiokaurin and excisanin B were 177 and 142 μmol/mL, which were less than that of resveratrol (183 μmol/mL). It showed that this way was simple, rapid, reliable and effective, which provided a new strategy to screen natural bioactive compounds from plants.
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Affiliation(s)
- Xinming Jia
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, 050017, P. R. China
| | - Shilin Sun
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, 050017, P. R. China
| | - Qian Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, 050017, P. R. China
| | - Nan Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, 050017, P. R. China
| | - Mengxin Yang
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, 050017, P. R. China
| | - Yiran Jin
- The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, P. R. China
| | - Yingfeng Du
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, 361 East Zhongshan Road, Shijiazhuang, 050017, P. R. China
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5
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Zhang HX, Wang ZZ, Du ZZ. Sensory-guided isolation and identification of new sweet-tasting dammarane-type saponins from Jiaogulan (Gynostemma pentaphyllum) herbal tea. Food Chem 2022; 388:132981. [PMID: 35468461 DOI: 10.1016/j.foodchem.2022.132981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 03/17/2022] [Accepted: 04/12/2022] [Indexed: 11/20/2022]
Abstract
The purpose of this study was to elucidate the chemical basis for the sweet property produced by Gynostemma pentaphyllum and find new natural high-potency (HP) sweeteners. Sixteen new compounds (gypenosides YN 1-16) were obtained by sensory-guided isolation and identification, in which fifteen of them were sweet-tasting constituents with sweetness intensities 10-100 times higher than that of sucrose evaluated by human sensory panel test. Their structures were established by 1D and 2D nuclear magnetic resonance spectra, mass spectroscopy, infrared spectroscopy, UV-visible spectroscopy, and chemical method. Gypenoside YN 4 was the sweetest compound with a concentration of 15.504 ± 1.343 mg/kg, while gypenoside YN 12 has the highest concentration (1397.674 ± 12.948 mg/kg), as shown by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Structure-activity relationship analysis implied that the compounds' sweetness intensity was associated with side-chain substitutions at C-20 or the number of glucosyl groups at C-3. These new plant-derived natural products may be potential natural sweeteners.
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Affiliation(s)
- Hong-Xia Zhang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Key Laboratory for Highly-Efficient Utilization of Forest Biomass Resources in the Southwest China, National Forestry and Grassland Administration, College of Chemical Engineering, Southwest Forestry University, Kunming 650224, China
| | - Zhong-Ze Wang
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Zhi Du
- Department of Economic Plants and Biotechnology, Yunnan Key Laboratory for Wild Plant Resources, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
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6
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Seidl C, de Lima JM, Leme GM, Pires AF, Stoll DR, Cardoso CL. A Comprehensive 2D-LC/MS Online Platform for Screening of Acetylcholinesterase Inhibitors. Front Mol Biosci 2022; 9:868597. [PMID: 35372507 PMCID: PMC8967351 DOI: 10.3389/fmolb.2022.868597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 02/25/2022] [Indexed: 11/18/2022] Open
Abstract
The continuous interest in discovering new bioactive molecules derived from natural products (NP) has stimulated the development of improved screening assays to help overcome challenges in NP-based drug discovery. Here, we describe a unique platform for the online screening of acetylcholinesterase inhibitors without the need for pre-treating the sample. In the current study, we have demonstrated the ability to combine reversed-phase separation with a capillary immobilized enzyme reactor (cIMER) in two-dimensional liquid chromatography system coupled with mass spectrometry detection. We systematically investigated the effects of method parameters that are of practical significance and are known to affect the enzyme assay and interfere in the analysis such as: bioreactor dimensions, loop sizes, amount of immobilized enzyme, second dimension flow rates, reaction time, substrate concentration, presence of organic modifier, limit of detection and signal suppression. The performance of this new platform was evaluated using a mixture containing three known AChE inhibitors (tacrine, galanthamine and donepezil) and an ethanolic extract obtained from the dry bulbs of Hippeastrum calyptratum (Amaryllidaceae) was investigated to provide a proof of concept of the applicability of the platform for the analysis of complex mixtures such as those derived from NPs.
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Affiliation(s)
- Claudia Seidl
- Grupo de Cromatografia de Bioafinidade e Produtos Naturais, Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Juliana Maria de Lima
- Grupo de Cromatografia de Bioafinidade e Produtos Naturais, Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Gabriel Mazzi Leme
- SEPARARE Núcleo de Pesquisa Em Cromatografia, Departamento de Química, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Ananda Ferreira Pires
- Grupo de Cromatografia de Bioafinidade e Produtos Naturais, Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Dwight R. Stoll
- Department of Chemistry, Gustavus Adolphus College, St. Peter, MIN, United States
| | - Carmen Lúcia Cardoso
- Grupo de Cromatografia de Bioafinidade e Produtos Naturais, Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
- *Correspondence: Carmen Lúcia Cardoso,
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7
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Ye X, Xiong L, Fu Q, Wang B, Wang Y, Zhang K, Yang J, Kantawong F, Kumsaiyai W, Zhou J, Lan C, Wu J, Zeng J. Chemical characterization and DPP-IV inhibitory activity evaluation of tripeptides from Gynura divaricata (L.) DC. JOURNAL OF ETHNOPHARMACOLOGY 2022; 292:115203. [PMID: 35304277 DOI: 10.1016/j.jep.2022.115203] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 02/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Gynura divaricata (L.) DC. (GD), a herbal medicine, has been used for the prevention and treatment of hyperglycemia in China. However, hypoglycemic ingredients within GD have not yet been well studied. AIM OF THE STUDY The aim of this study was to explore undiscovered compounds with dipeptidyl peptidase IV (DPP-IV) inhibitory activity within GD. MATERIALS AND METHODS A four-step strategy was developed to explore undiscovered DPP-IV inhibitors within GD. First, the components were preliminarily characterized using UHPLC-HRMS combined with a library search. Second, preliminarily characterized compounds were searched for potential bioactivity. Third, a mixture of these preliminarily characterized compounds was isolated and thoroughly characterized based on fragmentation patterns associated with molecular networking. Fourth, the activities of these compounds were verified using DPP-IV inhibitory assay and molecular docking. RESULTS Diprotin A, a tripeptide inhibitor against DPP-IV, was identified. Thereafter, a mixture of twenty-five diprotin A analogs was isolated and characterized, which exhibited IC50 of 0.40 mg/mL for DPP-IV. Molecular docking results also confirmed the interactions between the tripeptide analogs and DPP-IV mainly via H-bonds and hydrophobic interactions. CONCLUSIONS This is the first report of DPP-IV inhibitors within GD. These findings demonstrate that the extract of GD might be beneficial for the treatment of type 2 diabetes mellitus, and is expected to promote further development and utilization of GD in herbal medicine.
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Affiliation(s)
- Xinyuan Ye
- School of Pharmacy, Southwest Medical University, Luzhou, China.
| | - Ling Xiong
- School of Pharmacy, Southwest Medical University, Luzhou, China.
| | - Qifeng Fu
- School of Pharmacy, Southwest Medical University, Luzhou, China.
| | - Binyou Wang
- School of Pharmacy, Southwest Medical University, Luzhou, China.
| | - Yiwei Wang
- School of Pharmacy, Southwest Medical University, Luzhou, China; State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
| | - Kailian Zhang
- School of Pharmacy, Southwest Medical University, Luzhou, China.
| | - Jie Yang
- School of Pharmacy, Southwest Medical University, Luzhou, China; Faculty Associated Medical Sciences, Department of Medical Technology, Chiang Mai University, Chiang Mai, Thailand.
| | - Fahsai Kantawong
- Faculty Associated Medical Sciences, Department of Medical Technology, Chiang Mai University, Chiang Mai, Thailand.
| | - Warunee Kumsaiyai
- Faculty Associated Medical Sciences, Department of Medical Technology, Chiang Mai University, Chiang Mai, Thailand.
| | - Jie Zhou
- School of Pharmacy, Southwest Medical University, Luzhou, China; Education Ministry Key Laboratory of Medical Electrophysiology, Luzhou, China; Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou, China; Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, China.
| | - Cai Lan
- School of Pharmacy, Southwest Medical University, Luzhou, China; Education Ministry Key Laboratory of Medical Electrophysiology, Luzhou, China; Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou, China; Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, China.
| | - Jianming Wu
- School of Pharmacy, Southwest Medical University, Luzhou, China; Education Ministry Key Laboratory of Medical Electrophysiology, Luzhou, China; Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Luzhou, China; Key Laboratory of Activity Screening and Druggability Evaluation for Chinese Materia Medica, Southwest Medical University, Luzhou, China.
| | - Jing Zeng
- School of Pharmacy, Southwest Medical University, Luzhou, China.
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Banni GAHD, Nehmé R. Capillary electrophoresis for enzyme-based studies: Applications to lipases and kinases. J Chromatogr A 2021; 1661:462687. [PMID: 34864234 DOI: 10.1016/j.chroma.2021.462687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 11/05/2021] [Accepted: 11/14/2021] [Indexed: 10/19/2022]
Abstract
Capillary electrophoresis (CE) is a powerful technique continuously expanding into new application fields. One of these applications involves the study of enzymes, their catalytic activities and the alteration of this activity by specific ligands. In this review, two model enzymes, lipases and kinases, will be used since they differ substantially in their modes of action, reaction requirements and applications making them perfect subjects to demonstrate the advantages and limitations of CE-based enzymatic assays. Indeed, the ability to run CE in various operation modes and hyphenation to different detectors is essential for lipase-based studies. Additionally, the low sample consumption provided by CE promotes it as a promising technique to assay human and viral nucleoside kinases. Undeniably, these are rarely commercially available enzymes and must be frequently produced in the laboratory, a process which requires special sets of skills. CE-based lipase and kinase reactions can be performed outside the capillary (pre-capillary) where the reactants are mixed in a vial prior to their separation or, inside the capillary (in-capillary) where the reactants are mixed before the electrophoretic analysis. These enzyme-based applications of CE will be compared to those of liquid chromatography-based applications in terms of advantages and limitations. Binding assays based on affinity CE and the compelling microscale thermophoresis (MST) will be briefly presented as they allow a broad understanding of the molecular mechanism behind ligand binding and of the resulting modulation in activity.
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Affiliation(s)
- Ghassan Al Hamoui Dit Banni
- Institut de Chimie Organique et Analytique (ICOA), CNRS FR 2708 - UMR 7311, Université d'Orléans, Orléans 45067, France
| | - Reine Nehmé
- Institut de Chimie Organique et Analytique (ICOA), CNRS FR 2708 - UMR 7311, Université d'Orléans, Orléans 45067, France.
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9
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Zhang XW, Bian GL, Kang PY, Cheng XJ, Yan K, Liu YL, Gao YX, Li DQ. Recent advance in the discovery of tyrosinase inhibitors from natural sources via separation methods. J Enzyme Inhib Med Chem 2021; 36:2104-2117. [PMID: 34579614 PMCID: PMC8480707 DOI: 10.1080/14756366.2021.1983559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Tyrosinase (TYR) inhibitors are in great demand in the food, cosmetic and medical industrials due to their important roles. Therefore, the discovery of high-quality TYR inhibitors is always pursued. Natural products as one of the most important sources of bioactive compounds discovery have been increasingly used for TYR inhibitors screening. However, due to their complex compositions, it is still a great challenge to rapid screening and identification of biologically active components from them. In recent years, with the help of separation technologies and the affinity and intrinsic activity of target enzymes, two advanced approaches including affinity screening and inhibition profiling showed great promises for a successful screening of bioactive compounds from natural sources. This review summarises the recent progress of separation-based methods for TYR inhibitors screening, with an emphasis on the principle, application, advantage, and drawback of each method along with perspectives in the future development of these screening techniques and screened hit compounds.
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Affiliation(s)
- Xiao-Wei Zhang
- Department of Neurological Surgery, the Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Guang-Li Bian
- Department of Pharmacy, the Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Pei-Ying Kang
- Department of Clinical Laboratory, the Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xin-Jie Cheng
- Department of Pharmacy, the Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Kai Yan
- Institute for Drug Control of Hebei Province, Shijiazhuang, China
| | - Yong-Li Liu
- Institute for Drug Control of Hebei Province, Shijiazhuang, China
| | - Yan-Xia Gao
- Institute for Drug Control of Hebei Province, Shijiazhuang, China
| | - De-Qiang Li
- Department of Pharmacy, the Second Hospital of Hebei Medical University, Shijiazhuang, China
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10
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Fan W, Zhou J, Wu Z, Tan G, Li H, Mei Q, Qian Z. Analysis of antioxidants in Chrysanthemum indici flos by online gradient extraction and HPLC-FRAP. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:2283-2289. [PMID: 33969831 DOI: 10.1039/d1ay00548k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Chrysanthemum indici flos (CIF), a traditional functional beverage, has been used in China for thousands of years. However, research on the antioxidant properties and compounds in CIF is insufficient. In the current study, an online gradient extraction (OGE) coupled with a high performance liquid chromatography-ferric reducing antioxidant power (HPLC-FRAP) system for rapid identification of antioxidants in CIF was proposed. The CIF sample (0.3 mg) was extracted online by a gradient mobile phase (acetonitrile and 0.1% formic acid), separated on a Poroshell 120 SB-Aq column, and then detected for the anti-oxidative activity with the online FRAP assay. 36 peaks were found and 28 compounds were identified. Among them, 18 peaks showed antioxidant activity, six of which were detected in CIF for the first time. The total analytical time was less than 45 min, including sample extraction, separation, and antioxidant identification. The results indicate that the OGE-HPLC-FRAP system is a simple, efficient and rapid tool for screening antioxidants in CIF, which provides the scientific data of CIF's antioxidant research and is helpful to improve the quality evaluation of CIF.
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Affiliation(s)
- Weifeng Fan
- Guangzhou University of Chinese Medicine, Guangzhou 510006, China. and Dongguan HEC Cordyceps R&D Co., Ltd., Dongguan 523850, China.
| | - Jianqiao Zhou
- Dongguan HEC Cordyceps R&D Co., Ltd., Dongguan 523850, China.
| | - Zi Wu
- Dongguan HEC Cordyceps R&D Co., Ltd., Dongguan 523850, China.
| | - Guoying Tan
- Dongguan HEC Cordyceps R&D Co., Ltd., Dongguan 523850, China.
| | - Haoxiang Li
- Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
| | - Quanxi Mei
- Guangzhou University of Chinese Medicine, Guangzhou 510006, China. and Bao'an Authentic TCM Therapy Hospital, Shenzhen 518101, China
| | - Zhengming Qian
- Dongguan HEC Cordyceps R&D Co., Ltd., Dongguan 523850, China. and Xiangnan University, Chenzhou 423000, China
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11
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Yuan Y, Zhao M, Riffault-Valois L, Ennahar S, Bergaentzlé M, Marchioni E. Online acetylcholinesterase inhibition evaluation by high-performance liquid chromatography–mass spectrometry hyphenated with an immobilized enzyme reactor. J Chromatogr A 2020; 1609:460506. [DOI: 10.1016/j.chroma.2019.460506] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 08/29/2019] [Accepted: 09/01/2019] [Indexed: 11/28/2022]
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12
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Agarwal G, Carcache PJB, Addo EM, Kinghorn AD. Current status and contemporary approaches to the discovery of antitumor agents from higher plants. Biotechnol Adv 2020; 38:107337. [PMID: 30633954 PMCID: PMC6614024 DOI: 10.1016/j.biotechadv.2019.01.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 01/03/2019] [Accepted: 01/07/2019] [Indexed: 12/13/2022]
Abstract
Higher plant constituents have afforded clinically available anticancer drugs. These include both chemically unmodified small molecules and their synthetic derivatives currently used or those in clinical trials as antineoplastic agents, and an updated summary is provided. In addition, botanical dietary supplements, exemplified by mangosteen and noni constituents, are also covered as potential cancer chemotherapeutic agents. Approaches to metabolite purification, rapid dereplication, and biological evaluation including analytical hyphenated techniques, molecular networking, and advanced cellular and animal models are discussed. Further, enhanced and targeted drug delivery systems for phytochemicals, including micelles, nanoparticles and antibody drug conjugates (ADCs) are described herein.
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Affiliation(s)
- Garima Agarwal
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Peter J Blanco Carcache
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - Ermias Mekuria Addo
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States
| | - A Douglas Kinghorn
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH 43210, United States.
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13
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Zhao H, Lai C, Zhang M, Zhou S, Liu Q, Wang D, Geng Y, Wang X. An improved 2D-HPLC-UF-ESI-TOF/MS approach for enrichment and comprehensive characterization of minor neuraminidase inhibitors from Flos Lonicerae Japonicae. J Pharm Biomed Anal 2019; 175:112758. [DOI: 10.1016/j.jpba.2019.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 07/03/2019] [Accepted: 07/04/2019] [Indexed: 12/30/2022]
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14
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Yu L, Wei F, Liang J, Ren G, Liu X, Wang CZ, Yuan J, Zeng J, Luo Y, Bi Y, Yuan CS. Target Molecular-Based Neuroactivity Screening and Analysis of Panax ginseng by Affinity Ultrafiltration, UPLC-QTOF-MS and Molecular Docking. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2019; 47:1345-1363. [PMID: 31495181 DOI: 10.1142/s0192415x19500691] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Panax ginseng exerts good neuroprotective activity at the cell and animal level, but the specific bioactive compounds and action mechanism are needed to be investigated, verified, and confirmed. In this work, affinity ultrafiltration (AUF), UPLC-QTOF-MS, and molecular docking were integrated into one strategy to screen, identify, and evaluate the bioactive compounds in ginseng at the molecular level. Three biological macromolecules (AChE, MAO-B, and NMDA receptor) were selected as the target protein for AUF-MS screening for the first time, and 16 potential neuroactive compounds were found with suitable binding degree. Then, the bioactivity of ginseng and its components were evaluated by AChE-inhibitory test and DPPH assay, and the data indicate that ginseng extract and the screened compounds have good neuroactivity. The interaction between the three targets and the screened compounds was further analyzed by molecular docking, and the results were consistent with a few discrepancies in comparison with the AUF results. Finally, according to the corresponding relation between component-target-pathway, the action mechanism of ginseng elucidated that ginseng exerts a therapeutic effect on AD through multiple relations of components, targets, and pathways, which is in good accordance with the TCM theory.
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Affiliation(s)
- Lide Yu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Feiting Wei
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Jian Liang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Gang Ren
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Xiaofei Liu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Chong-Zhi Wang
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, The University of Chicago, Chicago, IL 60637, USA
| | - Jinbin Yuan
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Jinxiang Zeng
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Yun Luo
- Key Laboratory of Modern Preparation of TCM, Ministry of Education and School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, P. R. China
| | - Yi Bi
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Yantai University, Yantai 264005, P. R. China
| | - Chun-Su Yuan
- Tang Center for Herbal Medicine Research, and Department of Anesthesia & Critical Care, The University of Chicago, Chicago, IL 60637, USA
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15
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Shi S, Guo K, Tong R, Liu Y, Tong C, Peng M. Online extraction–HPLC–FRAP system for direct identification of antioxidants from solid Du-zhong brick tea. Food Chem 2019; 288:215-220. [DOI: 10.1016/j.foodchem.2019.03.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 12/05/2018] [Accepted: 03/05/2019] [Indexed: 12/21/2022]
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16
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Çelik SE, Asfoor A, Şenol O, Apak R. Screening Method for Argan Oil Adulteration with Vegetable Oils: An Online HPLC Assay with Postcolumn Detection Utilizing Chemometric Multidata Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:8279-8289. [PMID: 31259549 DOI: 10.1021/acs.jafc.9b03001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This study is focused on examining the tocopherol isomers (α-, γ-, and δ-) fingerprinting by online RP-HPLC analysis with post column detection using CUPRAC (cupric reducing antioxidant capacity) methodology for argan oil authenticity. The proposed online assay was validated with good precision, reproducibility, and linearity. Sixteen argan oil samples (100% pure-certified and other commercial argan oils), possible adulterating vegetable oils (i.e., olive, sunflower, corn, and soya oils), and virgin argan oil blended with olive, sunflower, corn, and soya oils at levels of 5%, 10%, 15%, and 20% were analyzed. Spectrophotometric CUPRAC, DPPH, and ABTS assays were applied. Discrimination of fraudulent argan oils from virgin samples was performed by utilizing orthogonal partial least-squares discriminant analysis (OPLS-DA) regression modeling with good sensitivity and specificity. We suggested [γ-toc/α-toc] value as a new first screening adulteration factor (AF) that could be used to assess fraudulent argan oil samples. The distinct decrement in AF value was observed by the increase of adulteration rate. The AF values for virgin argan oils were ranged from 11.8 (lower limit) to 18.6 (upper limit). The presence of β-sitosterol detected in commercial argan oils (with AF values out of limit values) was evaluated as fraudulent which was in accordance with the proposed assay. Our method enabled the detection of argan oil samples at adulteration levels of >5% in the case of sunflower, olive, and soya oils, >15% in the case of corn oil. This method may be an alternative and specific assay for the authentication and quality detection of commercial argan oils.
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Affiliation(s)
- Saliha Esin Çelik
- Department of Chemistry, Faculty of Engineering , Istanbul University-Cerrahpasa , Avcilar 34320 , Istanbul , Turkey
| | - Adel Asfoor
- Department of Chemistry, Faculty of Engineering , Istanbul University-Cerrahpasa , Avcilar 34320 , Istanbul , Turkey
| | - Onur Şenol
- Department of Analytical Chemistry, Faculty of Pharmacy , Ataturk University , 25240 , Erzurum , Turkey
| | - Reşat Apak
- Department of Chemistry, Faculty of Engineering , Istanbul University-Cerrahpasa , Avcilar 34320 , Istanbul , Turkey
- Turkish Academy of Sciences (TUBA) , Piyade Sokak No. 27 , 06690 Çankaya , Ankara , Turkey
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17
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Rinschen MM, Ivanisevic J, Giera M, Siuzdak G. Identification of bioactive metabolites using activity metabolomics. Nat Rev Mol Cell Biol 2019; 20:353-367. [PMID: 30814649 PMCID: PMC6613555 DOI: 10.1038/s41580-019-0108-4] [Citation(s) in RCA: 567] [Impact Index Per Article: 113.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The metabolome, the collection of small-molecule chemical entities involved in metabolism, has traditionally been studied with the aim of identifying biomarkers in the diagnosis and prediction of disease. However, the value of metabolome analysis (metabolomics) has been redefined from a simple biomarker identification tool to a technology for the discovery of active drivers of biological processes. It is now clear that the metabolome affects cellular physiology through modulation of other 'omics' levels, including the genome, epigenome, transcriptome and proteome. In this Review, we focus on recent progress in using metabolomics to understand how the metabolome influences other omics and, by extension, to reveal the active role of metabolites in physiology and disease. This concept of utilizing metabolomics to perform activity screens to identify biologically active metabolites - which we term activity metabolomics - is already having a broad impact on biology.
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Affiliation(s)
- Markus M Rinschen
- The Scripps Research Institute, Center for Metabolomics and Mass Spectrometry, La Jolla, CA, USA
| | - Julijana Ivanisevic
- Metabolomics Platform, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Martin Giera
- Leiden University Medical Center, Center for Proteomics & Metabolomics, Leiden, Netherlands.
| | - Gary Siuzdak
- The Scripps Research Institute, Center for Metabolomics and Mass Spectrometry, La Jolla, CA, USA.
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18
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Guo K, Tong C, Fu Q, Xu J, Shi S, Xiao Y. Identification of minor lignans, alkaloids, and phenylpropanoid glycosides in Magnolia officinalis by HPLC‒DAD‒QTOF-MS/MS. J Pharm Biomed Anal 2019; 170:153-160. [PMID: 30925272 DOI: 10.1016/j.jpba.2019.03.044] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/16/2019] [Accepted: 03/18/2019] [Indexed: 12/11/2022]
Abstract
An effective strategy based on high-speed counter-current chromatography (HSCCC) knockout combination with HPLC-DAD-QTOF-MS/MS analysis were developed to identify minor lignans, alkaloids, and phenylpropanoid glycosides in M. officinalis. Petroleum ether/ethyl acetate/methanol/water (8:4:7:5, v/v/v/v) as solvent system was firstly selected to separate the crude extract of M. officinalis. Two major lignans, honokiol and magnolol were knocked out, and minor components were enriched. Then, five standards (honokiol, magnolol, magnocurarine, magnoflorine and acteoside) were used as examples to discuss their fragmentation patterns for structural identification. By comprehensive screening, sixteen lignans, nine alkaloids, six phenylpropanoid glycosides were unambiguously or tentatively identified by comparing their retention time, UV spectra, accurate mass and fragmentation patterns with standards or reported components. Eight of them, as far as was known, were discovered from M. officinalis for the first time. The proposed method might provide a model for the effective identification of minor components from complex herbs. Additionally, this study laid a foundation for the study of quality control, and clinical applications of M. officinalis.
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Affiliation(s)
- Keke Guo
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Chaoying Tong
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, 410083, PR China
| | - Qiachi Fu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Jinju Xu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China
| | - Shuyun Shi
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, PR China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha, 410083, PR China.
| | - Yecheng Xiao
- Lianyuan Kanglu Biotech Co., Ltd., Lianyuan, 417100, PR China
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19
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Otvos RA, Still KBM, Somsen GW, Smit AB, Kool J. Drug Discovery on Natural Products: From Ion Channels to nAChRs, from Nature to Libraries, from Analytics to Assays. SLAS DISCOVERY : ADVANCING LIFE SCIENCES R & D 2019; 24:362-385. [PMID: 30682257 PMCID: PMC6484542 DOI: 10.1177/2472555218822098] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/16/2018] [Accepted: 12/07/2018] [Indexed: 12/21/2022]
Abstract
Natural extracts are complex mixtures that may be rich in useful bioactive compounds and therefore are attractive sources for new leads in drug discovery. This review describes drug discovery from natural products and in explaining this process puts the focus on ion-channel drug discovery. In particular, the identification of bioactives from natural products targeting nicotinic acetylcholine receptors (nAChRs) and serotonin type 3 receptors (5-HT3Rs) is discussed. The review is divided into three parts: "Targets," "Sources," and "Approaches." The "Targets" part will discuss the importance of ion-channel drug targets in general, and the α7-nAChR and 5-HT3Rs in particular. The "Sources" part will discuss the relevance for drug discovery of finding bioactive compounds from various natural sources such as venoms and plant extracts. The "Approaches" part will give an overview of classical and new analytical approaches that are used for the identification of new bioactive compounds with the focus on targeting ion channels. In addition, a selected overview is given of traditional venom-based drug discovery approaches and of diverse hyphenated analytical systems used for screening complex bioactive mixtures including venoms.
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Affiliation(s)
- Reka A. Otvos
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Kristina B. M. Still
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Govert W. Somsen
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - August B. Smit
- Department of Molecular and Cellular Neurobiology, Center for Neurogenomics and Cognitive Research, Neuroscience Campus Amsterdam, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jeroen Kool
- The Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of BioAnalytical Chemistry, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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20
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Quickly verifying the antioxidant contribution of the individual composition in natural antioxidants by HPLC-free radical scavenging detection. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2018.06.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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21
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Segovia FJ, Hidalgo GI, Villasante J, Ramis X, Almajano MP. Avocado Seed: A Comparative Study of Antioxidant Content and Capacity in Protecting Oil Models from Oxidation. Molecules 2018; 23:molecules23102421. [PMID: 30241408 PMCID: PMC6222478 DOI: 10.3390/molecules23102421] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 09/06/2018] [Accepted: 09/15/2018] [Indexed: 01/23/2023] Open
Abstract
Increasingly, consumers want products containing little or no synthetic compounds. Avocado seeds, which are a residue of the food industry, could be used to obtain extracts with high antioxidant power. In the present study, the most popular radical scavenging methods are presented, establishing a comparison between them, besides working with two different extractions: pure methanol and ethanol–water (50:50 v/v). The radical scavenging assay methods ORAC and ABTS were performed, as well as a novel method: the reaction to methoxy radical, as determined by electron paramagnetic resonance (EPR). Peroxide value and thiobarbituric acid reactive compounds (TBARs) were used to monitor the oxidation of avocado seed oil, as well as the power of the avocado seed extract (ASE) to delay oil oxidation by oxidation induction time (OIT) and measured by differential scanning calorimetry (DSC). Radical scavenging methods have values between 1310–263 µmol TE/g of mass dissolved for ORAC and ABTS, respectively. The individual contribution of each of the compounds present in the extract was analyzed. The sum of all of them contributed up to 84% of the total radical scavenging activity. The concentration of 0.75% ASE causes a delay in the oxidation that is close to 80%, as measured by OIT. This implies that avocado seed residue may have a use as a natural antioxidant source, providing added value to organic waste.
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Affiliation(s)
- Francisco J Segovia
- Chemical Engineering Department, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain.
| | - Gádor Indra Hidalgo
- Chemical Engineering Department, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain.
| | - Juliana Villasante
- Chemical Engineering Department, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain.
| | - Xavier Ramis
- Heat Engines Department, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain.
| | - María Pilar Almajano
- Chemical Engineering Department, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain.
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22
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Chen L, Lv D, Chen X, Liu M, Wang D, Liu Y, Hong Z, Zhu Z, Hu X, Cao Y, Yang J, Chai Y. Biosensor-Based Active Ingredients Recognition System for Screening STAT3 Ligands from Medical Herbs. Anal Chem 2018; 90:8936-8945. [PMID: 29953204 DOI: 10.1021/acs.analchem.8b01103] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Langdong Chen
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Diya Lv
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Xiaofei Chen
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Mingdong Liu
- Changhai Hospital, Second Military Medical University, Shanghai 200433, PR China
| | - Dongyao Wang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Yue Liu
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Zhanying Hong
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Zhenyu Zhu
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Xiaoxia Hu
- Changhai Hospital, Second Military Medical University, Shanghai 200433, PR China
| | - Yan Cao
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
| | - Jianmin Yang
- Changhai Hospital, Second Military Medical University, Shanghai 200433, PR China
| | - Yifeng Chai
- School of Pharmacy, Second Military Medical University, Shanghai 200433, PR China
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23
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Acquaviva A, Jones A, Dennis GR, Shalliker RA, Soliven A. Detection selectivity in the analysis of “reactive” chemical compounds derived from natural samples via reaction flow chromatography. Microchem J 2018. [DOI: 10.1016/j.microc.2018.02.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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24
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Guo PC, Shen HD, Fang JJ, Ding TM, Ding XP, Liu JF. On-line high-performance liquid chromatography coupled with biochemical detection method for screening of α-glucosidase inhibitors in green tea. Biomed Chromatogr 2018; 32:e4281. [PMID: 29744906 DOI: 10.1002/bmc.4281] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/20/2018] [Accepted: 04/26/2018] [Indexed: 12/12/2022]
Abstract
An on-line high-performance liquid chromatography-biochemical detection (HPLC-BCD) method, in which compounds separated by HPLC were on-line reacted with enzyme and substrate solutions delivered by flow injection and the enzyme inhibition signal was collected by UV detection, was developed to rapidly screen α-glucosidase inhibitors from green tea extracts in this study. The chromatographic fingerprints and enzyme inhibition profiles of the different brands of green tea could be simultaneously detected by the on-line HPLC-BCD method. Enzyme inhibition profiles were detected by the UV detector at 415 nm based on the reaction of α-glucosidase and p-nitrophenyl α-d-glucopyranoside (PNPG). PNPG (1.25 mm), α-glucosidase (0.4 U/mL) and the flow rate 0.07 mL/min were applied as optimized parameters to detect α-glucosidase inhibitors in green tea. Four components in green tea showed α-glucosidase inhibition action and three of them were identified as HHDP-galloyl glucose, (-)-epigallocatechin-3-gallate and (-)-epicatechin-3-gallate by HPLC-fourier-transform mass spectrometry (HPLC-FTMS). Two brands of green tea derived from Mengding and Enshi mountainous areas might be superior to the other samples in the prevention and treatment of diabetes owing to their stronger activities of enzyme inhibitors. The proposed on-line HPLC-BCD method could be used to rapidly identify the potential enzyme inhibitors in complex matrixes.
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Affiliation(s)
| | - Hua-Dan Shen
- Hubei University of Chinese Medicine, Wuhan, China
| | | | | | | | - Jun-Feng Liu
- Hubei University of Chinese Medicine, Wuhan, China
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25
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Acquaviva A, Jones A, Dennis GR, Shalliker RA, Soliven A. Phenolic profiling of complex tea samples via simultaneous multiplexed detection employing reaction flow HPLC columns and colorimetric post column derivatisation. Microchem J 2018. [DOI: 10.1016/j.microc.2018.01.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Zhao H, Zhang M, Liu Q, Wang X, Zhao R, Geng Y, Wong T, Li S, Wang X. A comprehensive screening shows that ergothioneine is the most abundant antioxidant in the wild macrofungus Phylloporia ribis Ryvarden. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2018; 36:98-111. [PMID: 29667505 DOI: 10.1080/10590501.2018.1450201] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The polar and non-polar extracts from the authenticated wild mushroom Phylloporia ribis were separated by hydrophilic interaction liquid chromatography (HILIC) and by reverse phase (RP)-HPLC, respectively. A split valve separated the eluents into two fractions for free-radical scavenging analysis and for structural identification. Forty-six compounds showed scavenging activity of the stable-free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH). The structures of 8 antioxidants (inosine, caffeic acid, ergothioneine, p-hydroxybenzoic acid, adenosine, 3,4-dihydroxybenzaldehyde, apigenin, and naringenin) are characterized by Mass Spectrometer. Among them, ergothioneine was the most abundant (>65%) and most active antioxidant in P. ribis.
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Affiliation(s)
- Hengqiang Zhao
- a Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center , Qilu University Of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Minmin Zhang
- a Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center , Qilu University Of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Qian Liu
- a Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center , Qilu University Of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Xiaoli Wang
- a Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center , Qilu University Of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Ruixuan Zhao
- a Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center , Qilu University Of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Yanling Geng
- a Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center , Qilu University Of Technology (Shandong Academy of Sciences) , Jinan , China
| | - Tityee Wong
- b Biological Sciences , University of Memphis , Memphis , Tennessee , USA
| | - Shengbo Li
- c Shandong Yate Eco-tech Co. LTD. , Linyi , China
| | - Xiao Wang
- a Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center , Qilu University Of Technology (Shandong Academy of Sciences) , Jinan , China
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27
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Qin X, Lu Y, Peng Z, Fan S, Yao Y. Systematic Chemical Analysis Approach Reveals Superior Antioxidant Capacity via the Synergistic Effect of Flavonoid Compounds in Red Vegetative Tissues. Front Chem 2018; 6:9. [PMID: 29468147 PMCID: PMC5808280 DOI: 10.3389/fchem.2018.00009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/12/2018] [Indexed: 12/31/2022] Open
Abstract
The flavonoid system comprises an abundance of compounds with multiple functions; however, their potential synergism in antioxidant function remains unclear. We established an approach using ever-red (RL) and ever-green leaves (GL) of crabapple cultivars during their development to determine interrelationships among flavonoid compounds. RL scored significantly better than GL in terms of the type, composition, and diversity of flavonoids than GL. Principal component analysis predicted flavonoids in RL to have positive interaction effects, and the total antioxidant capacity was significantly higher than the sum of antioxidant capacities of the individual compounds. This synergy was verified by the high antioxidant capacity in rat serum after feeding on red leaves. Our findings suggest that the synergistic effect is a result of the high transcription levels regulated by McMYBs in RL. In summary, individual flavonoids cooperate in a flavonoid system, thus producing a synergistic antioxidant effect, and the approach used herein can provide insights into the roles of flavonoids and other compounds in future studies.
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Affiliation(s)
| | | | | | - Shuangxi Fan
- Technology Industry Group, Beijing Key Laboratory of New Technology in Agricultural Application, National Demonstration Center for Experimental Plant Production Education, Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry Fruit Trees, Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Yuncong Yao
- Technology Industry Group, Beijing Key Laboratory of New Technology in Agricultural Application, National Demonstration Center for Experimental Plant Production Education, Beijing Collaborative Innovation Center for Eco-Environmental Improvement with Forestry Fruit Trees, Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
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28
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Zhang Y, He Y, Liu C, Liu C, Li S. In vitro screening and isolation of human aromatase inhibitors from Cicer arietinum
by a novel continuous online method combining chromatographic techniques. J Sep Sci 2017; 41:483-492. [DOI: 10.1002/jssc.201700990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Revised: 10/09/2017] [Accepted: 10/16/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Yuchi Zhang
- Central Laboratory; Changchun Normal University; Changchun China
| | - Yan He
- Nephropathy Department; The Affiliated Hospital to Changchun University of Chinese Medicine; Changchun China
| | - Chengyu Liu
- Clinical Department of Rehabilitation, College of Acupuncture and Massage; Changchun University of Traditional Chinese Medicine; Changchun China
| | - Chunming Liu
- Central Laboratory; Changchun Normal University; Changchun China
| | - Sainan Li
- Central Laboratory; Changchun Normal University; Changchun China
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29
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Baranauskaite J, Kubiliene A, Marksa M, Petrikaite V, Vitkevičius K, Baranauskas A, Bernatoniene J. The Influence of Different Oregano Species on the Antioxidant Activity Determined Using HPLC Postcolumn DPPH Method and Anticancer Activity of Carvacrol and Rosmarinic Acid. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1681392. [PMID: 29181386 PMCID: PMC5664182 DOI: 10.1155/2017/1681392] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 04/12/2017] [Accepted: 08/27/2017] [Indexed: 11/18/2022]
Abstract
The aim of this study was to evaluate concentration-dependent antioxidant and anticancer activities of CA and RA in ethanol extracts of three different Oregano species (Origanum onites L., Origanum vulgare L., and Origanum vulgare ssp. hirtum). The study revealed the highest RA antioxidant activity in O. vulgare ssp. hirtum (9550 ± 95 mmol/g) and the lowest in O. vulgare L. (2605 ± 52 mmol/g) (p < 0.05). The highest CA amount was present in O. onites L., which was 1.8 and 4.7 times higher (p < 0.05) than in O. vulgare ssp. hirtum and O. vulgare L., respectively. The anticancer activity was evaluated on human glioblastoma (U87) and triple-negative breast cancer (MDA-MB231) cell lines in vitro. RA anticancer activity was negligible. CA and the extracts were about 1.5-2 times more active against MDA-MB231 cell line (p < 0.05) compared to U87 cell line. The anticancer activities of three tested extracts were similar against U87 cell line (p > 0.05) but they had different activities against MDA-MB231 cell line.
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Affiliation(s)
- Juste Baranauskaite
- Department of Drugs Technology and Social Pharmacy, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Asta Kubiliene
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Mindaugas Marksa
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Vilma Petrikaite
- Department of Drug Chemistry, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Konradas Vitkevičius
- Department of Analytical and Toxicological Chemistry, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Algirdas Baranauskas
- Department of Drugs Technology and Social Pharmacy, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
| | - Jurga Bernatoniene
- Department of Drugs Technology and Social Pharmacy, Lithuanian University of Health Sciences, Medical Academy, Kaunas, Lithuania
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30
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Nalewajko-Sieliwoniuk E, Malejko J, Twarowska P, Timoszuk M, Nazaruk J. Postcolumn determination of polyphenolic antioxidants in Cirsium vulgare
(Savi) Ten. extracts. J Sep Sci 2017; 40:3830-3838. [DOI: 10.1002/jssc.201700496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 07/20/2017] [Accepted: 07/28/2017] [Indexed: 11/11/2022]
Affiliation(s)
| | - Julita Malejko
- Department of Analytical Chemistry; Institute of Chemistry; University of Białystok; Białystok Poland
| | - Paulina Twarowska
- Department of Analytical Chemistry; Institute of Chemistry; University of Białystok; Białystok Poland
| | - Magdalena Timoszuk
- Department of Analytical Chemistry; Institute of Chemistry; University of Białystok; Białystok Poland
| | - Jolanta Nazaruk
- Department of Pharmacognosy; Medical University of Białystok; Białystok Poland
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31
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Arslan Burnaz N, Küçük M, Akar Z. An on-line HPLC system for detection of antioxidant compounds in some plant extracts by comparing three different methods. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1052:66-72. [PMID: 28359985 DOI: 10.1016/j.jchromb.2017.03.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 02/28/2017] [Accepted: 03/08/2017] [Indexed: 12/27/2022]
Abstract
Echinacea (Echinacea purpurea), green tea (Camellia sinensis) and yaylacayi (Thymus praecox OPIZ subsp. grossheimii (Ronniger) Jalas) are herbs used in traditional medicine because of their beneficial health effects. A high performance liquid chromatography (HPLC) post-column method was developed by coupling HPLC with on-line antioxidant assays using diode array (DAD) and ultraviolet (UV) detectors. Thus antioxidant compounds and fifteen phenolic standards were detected in echinacea, green tea and yaylacayi methanol extracts simultaneously. Later on, the developed on-line HPLC coupled system was used to compare three different antioxidant methods, ABTS [2,2'-Azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid)], DPPH (2,2-diphenyl-1-picrylhydrazyl and FRAP (Ferric reducing antioxidant power). Eight compounds with antioxidant activity were identified as gallic acid, protocatechuic aldehyde, p-OH benzoic acid, chlorogenic acid, caffeic acid, vanillin, ferulic acid, and rosmarinic acid. For validation purposes, LOD (limit of detection) (0.36-14.68μg/mL) and LOQ (limit of quantification) (1.35-48.92μg/mL) values were calculated for six standards. The results showed that while the post-column ABTS and FRAP assays were repeatable, sensitive and supportive of each other, the post-column DPPH assay did not provide reliable results. Also due to the base-line noise and drifts in post-column DPPH assay, identification and quantitation of analytes could not be done accurately.
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Affiliation(s)
- Nesibe Arslan Burnaz
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Gümüşhane University, 29100 Gümüşhane, Turkey.
| | - Murat Küçük
- Department of Chemistry, Faculty of Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey.
| | - Zeynep Akar
- Department of Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, Gümüşhane University, 29100 Gümüşhane, Turkey.
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Wang J, Zheng M, Chen L, Liu Z, Zhang Y, Liu CM, Liu S. Rapid screening, separation, and detection of hydroxyl radical scavengers from total flavonoids ofGinkgo bilobaleaves by chromatography combined with molecular devices. J Sep Sci 2016; 39:4158-4165. [DOI: 10.1002/jssc.201600679] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/11/2016] [Accepted: 08/29/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Jing Wang
- The Central Laboratory; Changchun Normal University; Changchun China
| | - Meizhu Zheng
- The Central Laboratory; Changchun Normal University; Changchun China
| | - Lina Chen
- The Central Laboratory; Changchun Normal University; Changchun China
| | - Zhiqiang Liu
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry & Chemical Biology Laboratory, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun China
| | - Yuchi Zhang
- The Central Laboratory; Changchun Normal University; Changchun China
| | - Chun-ming Liu
- The Central Laboratory; Changchun Normal University; Changchun China
| | - Shu Liu
- National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry & Chemical Biology Laboratory, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun China
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33
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Peng MJ, Shi SY, Chen L, Zhang SH, Cai P, Chen XQ. Online coupling solid-phase ligand-fishing with high-performance liquid chromatography–diode array detector–tandem mass spectrometry for rapid screening and identification of xanthine oxidase inhibitors in natural products. Anal Bioanal Chem 2016; 408:6693-701. [DOI: 10.1007/s00216-016-9784-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/01/2016] [Accepted: 07/08/2016] [Indexed: 11/29/2022]
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34
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Multiple on-line HPLC coupled with biochemical detection methods to evaluate bioactive compounds in Danshen injection. Biomed Chromatogr 2016; 30:1854-1860. [DOI: 10.1002/bmc.3772] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 05/13/2016] [Accepted: 05/22/2016] [Indexed: 01/24/2023]
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35
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De-qiang L, Zhao J, Wu D, Shao-ping L. Discovery of active components in herbs using chromatographic separation coupled with online bioassay. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1021:81-90. [DOI: 10.1016/j.jchromb.2016.02.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 01/19/2016] [Accepted: 02/03/2016] [Indexed: 11/30/2022]
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36
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Peng MJ, Zhang YP, Shi SY. Separation of polar antioxidants from Rhizoma Polygonatum Odorati by high-speed counter-current chromatography with a hydrophilic solvent system. J LIQ CHROMATOGR R T 2016. [DOI: 10.1080/10826076.2016.1141298] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Mi-Jun Peng
- Key Laboratory of Hunan Forest Products and Chemical Industry Engineering, Jishou University, Zhangjiajie, P. R. China
- College of Chemistry and Chemical Engineering, Central South University, Changsha, P. R. China
| | - Yu-Ping Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, P. R. China
| | - Shu-Yun Shi
- College of Chemistry and Chemical Engineering, Central South University, Changsha, P. R. China
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37
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Apak R, Özyürek M, Güçlü K, Çapanoğlu E. Antioxidant Activity/Capacity Measurement. 3. Reactive Oxygen and Nitrogen Species (ROS/RNS) Scavenging Assays, Oxidative Stress Biomarkers, and Chromatographic/Chemometric Assays. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1046-1070. [PMID: 26689748 DOI: 10.1021/acs.jafc.5b04744] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
There are many studies in which the antioxidant potential of different foods have been analyzed. However, there are still conflicting results and lack of information as a result of unstandardized assay techniques and differences between the principles of the methods applied. The measurement of antioxidant activity, especially in the case of mixtures, multifunctional or complex multiphase systems, cannot be evaluated satisfactorily using a simple antioxidant test due to the many variables influencing the results. In the literature, there are many antioxidant assays that are used to measure the total antioxidant activity/capacity of food materials. In this review, reactive oxygen and nitrogen species (ROS/RNS) scavenging assays are evaluated with respect to their mechanism, advantages, disadvantages, and potential use in food systems. On the other hand, in vivo antioxidant activity (AOA) assays including oxidative stress biomarkers and cellular-based assays are covered within the scope of this review. Finally, chromatographic and chemometric assays are reviewed, focusing on their benefits especially with respect to their time saving, cost-effective, and sensitive nature.
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Affiliation(s)
- Reşat Apak
- Department of Chemistry, Faculty of Engineering, Istanbul University , Avcilar, 34320 Istanbul, Turkey
| | - Mustafa Özyürek
- Department of Chemistry, Faculty of Engineering, Istanbul University , Avcilar, 34320 Istanbul, Turkey
| | - Kubilay Güçlü
- Department of Chemistry, Faculty of Engineering, Istanbul University , Avcilar, 34320 Istanbul, Turkey
| | - Esra Çapanoğlu
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University , Maslak, 34469 Istanbul, Turkey
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38
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39
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Peng WB, Tan JL, Huang DD, Ding XP. On-Line HPLC with Biochemical Detection for Screening Bioactive Compounds in Complex Matrixes. Chromatographia 2015. [DOI: 10.1007/s10337-015-2982-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Antioxidant and Anti-Inflammatory Activity Determination of One Hundred Kinds of Pure Chemical Compounds Using Offline and Online Screening HPLC Assay. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:165457. [PMID: 26504472 PMCID: PMC4609401 DOI: 10.1155/2015/165457] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/03/2015] [Accepted: 07/30/2015] [Indexed: 11/18/2022]
Abstract
This study investigated the antioxidant activity of one hundred kinds of pure chemical compounds found within a number of natural substances and oriental medicinal herbs (OMH). Three different methods were used to evaluate the antioxidant activity of DPPH radical-scavenging activity, ABTS radical-scavenging activity, and online screening HPLC-ABTS assays. The results indicated that 17 compounds exhibited better inhibitory activity against ABTS radical than DPPH radical. The IC50 rate of a more practical substance is determined, and the ABTS assay IC50 values of gallic acid hydrate, (+)-catechin hydrate, caffeic acid, rutin hydrate, hyperoside, quercetin, and kaempferol compounds were 1.03 ± 0.25, 3.12 ± 0.51, 1.59 ± 0.06, 4.68 ± 1.24, 3.54 ± 0.39, 1.89 ± 0.33, and 3.70 ± 0.15 μg/mL, respectively. The ABTS assay is more sensitive to identifying the antioxidant activity since it has faster reaction kinetics and a heightened response to antioxidants. In addition, there was a very small margin of error between the results of the offline-ABTS assay and those of the online screening HPLC-ABTS assay. We also evaluated the effects of 17 compounds on the NO secretion in LPS-stimulated RAW 264.7 cells and also investigated the cytotoxicity of 17 compounds using a cell counting kit (CCK) in order to determine the optimal concentration that would provide an effective anti-inflammatory action with minimum toxicity. These results will be compiled into a database, and this method can be a powerful preselection tool for compounds intended to be studied for their potential bioactivity and antioxidant activity related to their radical-scavenging capacity.
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41
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Iyer JK, Otvos RA, Kool J, Kini RM. Microfluidic Chip–Based Online Screening Coupled to Mass Spectrometry. ACTA ACUST UNITED AC 2015; 21:212-20. [DOI: 10.1177/1087057115602648] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 08/04/2015] [Indexed: 11/17/2022]
Abstract
Thrombin and factor Xa (FXa) are critical enzymes of the blood coagulation cascade and are excellent targets of anticoagulant agents. Natural sources present an array of anticoagulants that can be developed as antithrombotic drugs. High-resolution, online screening techniques have been developed for the identification of drug leads from complex mixtures. In this study, we have developed and optimized a microfluidic online screening technique coupled to nano–liquid chromatography (LC) and in parallel with a mass spectrometer for the identification of thrombin and FXa inhibitors in mixtures. Inhibitors eluting from the nano-LC were split postcolumn in a 1:1 ratio; half was fed into a mass spectrometer (where its mass is detected), and the other half was fed into a microfluidic chip (which acts as a microreactor for the online assays). With our platform, thrombin and FXa inhibitors were detected in the assay in parallel with their mass identification. These methods are suitable for the identification of inhibitors from sample amounts as low as sub-microliter volumes.
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Affiliation(s)
| | - Reka A. Otvos
- AIMMS Division of BioAnalytical Chemistry, Faculty of Sciences, VU University Amsterdam, Amsterdam, Netherlands
| | - Jeroen Kool
- AIMMS Division of BioAnalytical Chemistry, Faculty of Sciences, VU University Amsterdam, Amsterdam, Netherlands
| | - R. Manjunatha Kini
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
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42
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Sensitive characterization of polyphenolic antioxidants in Polygonatum odoratum by selective solid phase extraction and high performance liquid chromatography–diode array detector–quadrupole time-of-flight tandem mass spectrometry. J Pharm Biomed Anal 2015; 112:15-22. [DOI: 10.1016/j.jpba.2015.04.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 04/08/2015] [Accepted: 04/13/2015] [Indexed: 01/07/2023]
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43
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Rimkiene L, Ivanauskas L, Kubiliene A, Vitkevicius K, Kiliuviene G, Jakstas V. Optimization of a CUPRAC-Based HPLC Postcolumn Assay and Its Applications for Ginkgo biloba L. Extracts. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2015; 2015:280167. [PMID: 26236538 PMCID: PMC4509493 DOI: 10.1155/2015/280167] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 06/21/2015] [Indexed: 06/04/2023]
Abstract
The aim of the present work was to improve and validate the HPLC-CUPRAC postcolumn method for the evaluation of active antioxidant markers from the acetonic extracts of Ginkgo biloba leaves. Improvement of the HPLC online assay was performed by evaluating the suitable loop temperature, the reaction loop length, and the impact of flow rate. Separation of the analytes was performed by the HPLC method on an ACE C18 analytical column using a gradient elution program. The separated antioxidant markers in the extracts reacted with copper(II)-neocuproine (Cu(II)-Nc) reagent in the postcolumn reaction coil. The reagent was reduced by antioxidants to the copper(I)-neocuproine (Cu(I)-Nc) chelate with a maximum absorption at 450 nm. Validation experiments confirmed sufficient precision, sensitivity, and effectiveness of the corresponding method, which could be used for further evaluations of active antioxidant compounds in similar plant materials.
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Affiliation(s)
- Laura Rimkiene
- Department of Analytical and Toxicological Chemistry, Faculty of Pharmacy, Medical Academy of Lithuanian University of Health Sciences, Eiveniu Street 4, LT-50161 Kaunas, Lithuania
| | - Liudas Ivanauskas
- Department of Analytical and Toxicological Chemistry, Faculty of Pharmacy, Medical Academy of Lithuanian University of Health Sciences, Eiveniu Street 4, LT-50161 Kaunas, Lithuania
| | - Asta Kubiliene
- Department of Analytical and Toxicological Chemistry, Faculty of Pharmacy, Medical Academy of Lithuanian University of Health Sciences, Eiveniu Street 4, LT-50161 Kaunas, Lithuania
| | - Konradas Vitkevicius
- Department of Analytical and Toxicological Chemistry, Faculty of Pharmacy, Medical Academy of Lithuanian University of Health Sciences, Eiveniu Street 4, LT-50161 Kaunas, Lithuania
| | - Guoda Kiliuviene
- Department of Analytical and Toxicological Chemistry, Faculty of Pharmacy, Medical Academy of Lithuanian University of Health Sciences, Eiveniu Street 4, LT-50161 Kaunas, Lithuania
| | - Valdas Jakstas
- Department of Pharmacognosy, Faculty of Pharmacy, Medical Academy of Lithuanian University of Health Sciences, Eiveniu Street 4, LT-50161 Kaunas, Lithuania
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44
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Analysis and improved characterization of minor antioxidants from leaves of Malus doumeri using a combination of major constituents’ knockout with high-performance liquid chromatography–diode array detector–quadrupole time-of-flight tandem mass spectrometry. J Chromatogr A 2015; 1398:57-65. [DOI: 10.1016/j.chroma.2015.04.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2015] [Revised: 04/08/2015] [Accepted: 04/08/2015] [Indexed: 12/30/2022]
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45
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An evidence-based approach to the evaluation of ethnoveterinary medicines against strongyle nematodes of equids. Vet Parasitol 2015; 210:40-52. [DOI: 10.1016/j.vetpar.2015.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 03/12/2015] [Accepted: 03/13/2015] [Indexed: 11/18/2022]
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46
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Separation and purification of α-glucosidase inhibitors from Polygonatum odoratum by stepwise high-speed counter-current chromatography combined with Sephadex LH-20 chromatography target-guided by ultrafiltration–HPLC screening. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 985:149-54. [DOI: 10.1016/j.jchromb.2015.01.030] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 01/16/2015] [Accepted: 01/24/2015] [Indexed: 01/05/2023]
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47
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Liang X, Zhang Y, Chen W, Cai P, Zhang S, Chen X, Shi S. High-speed counter-current chromatography coupled online to high performance liquid chromatography-diode array detector-mass spectrometry for purification, analysis and identification of target compounds from natural products. J Chromatogr A 2015; 1385:69-76. [PMID: 25678319 DOI: 10.1016/j.chroma.2015.01.076] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 01/16/2015] [Accepted: 01/25/2015] [Indexed: 11/25/2022]
Abstract
A challenge in coupling high-speed counter-current chromatography (HSCCC) online with high performance liquid chromatography (HPLC) for purity analysis was their time incompatibility. Consequently, HSCCC-HPLC was conducted by either controlling HPLC analysis time and HSCCC flow rate or using stop-and-go scheme. For natural products containing compounds with a wide range of polarities, the former would optimize experimental conditions, while the latter required more time. Here, a novel HSCCC-HPLC-diode array detector-mass spectrometry (HSCCC-HPLC-DAD-MS) was developed for undisrupted purification, analysis and identification of multi-compounds from natural products. Two six-port injection valves and a six-port switching valve were used as interface for collecting key HSCCC effluents alternatively for HPLC-DAD-MS analysis and identification. The ethyl acetate extract of Malus doumeri was performed on the hyphenated system to verify its efficacy. Five main flavonoids, 3-hydroxyphloridzin (1), phloridzin (2), 4',6'-dihydroxyhydrochalcone-2'-O-β-D-glucopyranoside (3, first found in M. doumeri), phloretin (4), and chrysin (5), were purified with purities over 99% by extrusion elution and/or stepwise elution mode in two-step HSCCC, and 25mM ammonium acetate solution was selected instead of water to depress emulsification in the first HSCCC. The online system shortened manipulation time largely compared with off-line analysis procedure and stop-and-go scheme. The results indicated that the present method could serve as a simple, rapid and effective way to achieve target compounds with high purity from natural products.
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Affiliation(s)
- Xuejuan Liang
- Research Institute of Chinese Medicine, Hunan Academy of Chinese Medicine, Changsha 410013, China
| | - Yuping Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
| | - Wei Chen
- Research Institute of Chinese Medicine, Hunan Academy of Chinese Medicine, Changsha 410013, China
| | - Ping Cai
- Research Institute of Chinese Medicine, Hunan Academy of Chinese Medicine, Changsha 410013, China
| | - Shuihan Zhang
- Research Institute of Chinese Medicine, Hunan Academy of Chinese Medicine, Changsha 410013, China.
| | - Xiaoqin Chen
- Research Institute of Chinese Medicine, Hunan Academy of Chinese Medicine, Changsha 410013, China
| | - Shuyun Shi
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China.
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48
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Nalewajko-Sieliwoniuk E, Malejko J, Mozolewska M, Wołyniec E, Nazaruk J. Determination of polyphenolic compounds in Cirsium palustre (L.) extracts by high performance liquid chromatography with chemiluminescence detection. Talanta 2015; 133:38-44. [DOI: 10.1016/j.talanta.2014.05.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Revised: 05/02/2014] [Accepted: 05/12/2014] [Indexed: 10/25/2022]
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Analysis of Bovine Serum Albumin Ligands from Puerariae flosUsing Ultrafiltration Combined with HPLC-MS. J CHEM-NY 2015. [DOI: 10.1155/2015/648361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Rapid screening techniques for identification of active compounds from natural products are important not only for clarification of the therapeutic material basis, but also for supplying suitable chemical markers for quality control. In the present study, ultrafiltration combined with high performance liquid chromatography-mass spectrometry (HPLC-MS) was developed and conducted to screen and identify bovine serum albumin (BSA) bound ligands fromPuerariae flos. Fundamental parameters affecting the screening like incubation time, BSA concentration, pH, and temperature were studied and optimized. Under the optimum conditions, nine active compounds were identified by UV and MS data. The results indicated that this method was able to screen and identify BSA bound ligands form natural products without the need of preparative isolation techniques. Moreover, the method has more effective with easier operation procedures.
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Deng X, Shi S, Li S, Yang T. Magnetic ligand fishing combination with high-performance liquid chromatography–diode array detector–mass spectrometry to screen and characterize cyclooxygenase-2 inhibitors from green tea. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 973C:55-60. [DOI: 10.1016/j.jchromb.2014.10.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 09/18/2014] [Accepted: 10/08/2014] [Indexed: 11/27/2022]
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